Work Sharp Ken Onion Edition Knife Sharpener
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Electric belt sharpener with adjustable 15–30° angle guide and flexible abrasive belts in multiple grits. Sharpens both Japanese (15°) and German (20°) knives. High metal removal rate.
The Work Sharp Ken Onion Edition uses flexible abrasive belts in a progression of grits, with an adjustable blade guide that sets the sharpening angle between 15° and 30° — covering both Japanese (15°) and German (20–22°) knife geometry. The flexible belt conforms to the blade's profile, which means it sharpens both the flat and the tip curve equally rather than only the flat portion. The metal removal rate is high — this is a sharpener for damaged or very dull knives, not for touch-up maintenance. Used correctly, it produces a near-whetstone-quality edge.
Pros
- Adjustable 15–30° guide covers Japanese and German knife angles in one unit
- Flexible belts conform to blade profile — sharpens tip curve as effectively as flat
- Multiple belt grits allow full progression from coarse repair to fine polishing
Cons
- High metal removal rate — inappropriate for touch-up maintenance; accelerates blade thinning over years
- Learning curve: incorrect angle setting damages the blade edge; beginner-unfriendly
Score breakdown
Knife Sharpener Reviews: The Ken Onion by Work Sharp
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